I
iTeachChem•2mo ago
flower

Trigonometry

approach no getting ;-;
No description
20 Replies
iTeachChem Helper
iTeachChem Helper•2mo ago
@Apu
iTeachChem Helper
iTeachChem Helper•2mo ago
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.
flower
flowerOP•2mo ago
btw multiple correct hai
BlindSniper (BS)
BlindSniper (BS)•2mo ago
qr code looks interesting lemme try yeah nvm no clue would like to see solution
SirLancelotDuLac
SirLancelotDuLac•2mo ago
For x replace phi by pi/2-phi and use half angle properties to get x=tan(pi/4-phi/2) and similarly y=cot(phi/2). Now use tan(a+b) to get (2)
flower
flowerOP•2mo ago
How in hell ae wwe supposed to get that replacement approach in our mind nahh nahi aa raha bhai im deff doing something wrong
SirLancelotDuLac
SirLancelotDuLac•2mo ago
No description
flower
flowerOP•2mo ago
bhai ye thrid step me kya kiya hai 💀
SirLancelotDuLac
SirLancelotDuLac•2mo ago
Which one sorry?
flower
flowerOP•2mo ago
the one where you cancelled the terms out what have you done there 2 sin^2 pi/4-phi/2 kaha se aaya even the denominator
SirLancelotDuLac
SirLancelotDuLac•2mo ago
Well Pehle sin(phi) ko cos(pi/2-phi) abd similarly sin ko cos mein likh sakte hai
flower
flowerOP•2mo ago
ha ok
SirLancelotDuLac
SirLancelotDuLac•2mo ago
Then use 1-cos(theta)=2sin²(theta/2) And sin(x)=2sin(x/2)cos(x/2)
flower
flowerOP•2mo ago
wth is this?? what property is this ye to nahi yaad oh wait nvm got it sori my bad bit high but wouldnt this be -2sin^2 theta/2 cuz cosA=1-2sin^A abey yaar sori jrgfibsdfkjv i should sleep idk my brain is fried ;-; thanks ill note this down
minttea
minttea•2mo ago
simplify to sines and coses and substitute youll get answer how would you take half angles in terms of x and all or are u simplifying thje ratios and then figuring out the replacement terms?
flower
flowerOP•2mo ago
this
minttea
minttea•2mo ago
ok
SirLancelotDuLac
SirLancelotDuLac•2mo ago
Yo this clear? @Phalawor
flower
flowerOP•2mo ago
Oh yea yea thanks dude +solved @SirLancelotDuLac
iTeachChem Helper
iTeachChem Helper•2mo ago
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